Post Falls, ID: 2 Health Violations — 67/100 (2026)
2 ZIP codes · 9 water systems · Updated 2026-06-03
Within Post Falls, water safety data for ID reveals moderate quality — federal standards are generally met, but documented exceptions exist in specific service areas.
How Post Falls Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Post Falls Water
- Your city's water systems recorded 2 violations in the past 5 years.
- Average lead level: 0.001 mg/L.
- Estimated remediation: $2,100 per household.
- CDC health risk index: 12.05 — above typical levels.
Who Supplies Your Water in Post Falls
At present, 3 utilities serve the bulk of Post Falls, ID's residential water connections out of 9 systems active in the area, spread across independent providers with separate infrastructure and compliance obligations.
Overview
We track water quality and home safety data for 2 ZIP codes in Post Falls, Idaho (population ~53,152), covering 9 community water systems serving approximately 116,226 people region-wide.
2 of 2 ZIP codes (100%) have recorded EPA violations. 2 health-based violations documented.
Home Safety Score
Average Home Safety Score for Post Falls: C (67/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Post Falls water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0010 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
- Zone 1 (High): 2 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 3 | 2 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 83854 | C | 1 | 1 | City of Post Falls |
| 83877 | C | 1 | 1 | City of Post Falls |
All ZIP Codes in Post Falls
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
Health Outcomes in Post Falls
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Top Contaminants in Post Falls Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Cost Context: What Remediation Means for Post Falls Homeowners
Because property values in Post Falls comfortably exceed estimated remediation costs, the equity impact here is proportionally small.
Remediation costs in Post Falls are relatively low compared to home values. The $1,350–$3,000 estimated range is a small fraction of median property value. Home values are 30% above the Idaho average.
Lead Exposure Risk for Children in Post Falls
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Lead risk in Post Falls appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Post Falls
Flood risk in Post Falls occupies the middle ground: 1 NFIP claim and 50% of local ZIP codes within FEMA flood zones. At that level, the risk pathways connecting flooding to water quality — treatment system stress, well infiltration, distribution backflow — become relevant considerations during significant flood events, even if day-to-day water quality is unaffected by flood history.
Post Falls has a moderate flood history with 1 FEMA claims averaging $103 per payout. 50% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$2,100</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Post Falls
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. Filters rated for Consumer Confidence Report Rule can reduce the most common contaminant found in Post Falls's water.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
Deep Dive Reports
Detailed analysis for Post Falls, ID